Below is a list of the 1273 science fair project ideas on our site. To help you find a topic that can hold your interest, Science Buddies has also developed the Topic Selection Wizard.

May 19, 2025 · STEM Fair Project Ideas For Students can help you explore fun topics. You will make cool experiments and learn how things work. You might test how plants grow or build a simple robot. …

Find the best STEM projects & science fair project ideas · Over 55 subjects · Easy science fair projects, Top 10 & more!

Mar 12, 2023 · Do you need a science fair project idea? We have 50 (and counting) science fair project ideas for kids of all ages that is sure to inspire your next science fair to be the best one ever!

Jun 26, 2025 · Explore 1000s of Free Science Fair Projects 2025, Kids Projects, Expo Ideas, Exhibition Topics, Working Craft Models, Science Experiments with Creative Ideas on for Aerodynamics or …

Nov 1, 2025 · In this guide, we’ll explore 35+ free STEM fair project ideas that you can try using simple materials at home or school. You’ll find projects for science, technology, engineering, and …

2 days ago · Explore winning science fair project ideas for 2026! From easy experiments to advanced STEM challenges - perfect for students of all levels.

Dec 25, 2025 · Discover 10 good STEM fair projects for all ages! Our list includes ideas for biology, engineering, and coding to help you win your next science fair.

Discover 220+ free science fair project ideas and step-by-step experiments for students grades K-12. From physics and chemistry to biology and engineering - complete with materials lists, safety …

Feb 6, 2023 · For students especially interested in physics or engineering, STEM challenges can lead to amazing science fair project ideas. Check out these lists for engaging challenges, and watch the …